Java / Spring Boot Developer (Blockchain) Location: United States Employment Type: Full-Time Job Summary We are seeking a skilled Java / Spring Boot Developer (Blockchain) to design, develop, and maintain scalable backend applications and blockchain-related services. The ideal candidate has strong Java and Spring Boot experience, solid backend engineering skills, and an interest or background in blockchain technologies.

Key Responsibilities

Design, develop, and maintain backend applications using Java and Spring Boot. Build scalable RESTful APIs and microservices. Develop and integrate blockchain-based applications and services. Work with databases, external APIs, and distributed systems. Implement secure, reliable, and high-performance backend solutions. Integrate blockchain networks, wallets, smart contracts, or related services where required. Troubleshoot, test, and optimize application performance. Participate in code reviews and maintain clean, reusable, and well-documented code. Collaborate with frontend developers, blockchain engineers, product managers, and other technical teams. Follow software development best practices, security standards, and Agile methodologies.

Required Qualifications

Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or a related field. 2+ years of professional Java development experience. Strong knowledge of Java and Spring Boot. Experience developing REST APIs and microservices. Familiarity with relational or NoSQL databases. Experience with Git and modern software development workflows. Understanding of software architecture, testing, and debugging. Familiarity with blockchain concepts and distributed ledger technology. Strong problem-solving and communication skills.

Preferred Qualifications

Experience working with Ethereum, EVM-compatible networks, or other blockchain platforms. Familiarity with smart contracts and Web3 technologies. Experience with Solidity or blockchain APIs. Knowledge of Docker, Kubernetes, or cloud platforms such as AWS, Azure, or Google Cloud. Experience with CI/CD pipelines and automated testing. Understanding of cryptography, digital signatures, and blockchain security. Experience working in Agile/Scrum development environments.